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llms.txt is a plain Markdown file at the root of your domain that gives AI systems a short, structured guide to your site: what the business does and which pages matter. Are you found by AI? does not offer it as a separate tool page. It comes with the scan instead:
  • Free scan: “A starter llms.txt in every free scan, written from your site.”
  • Full report: “The full report generates the complete file.”
Run the free scan to get your starter file. It is written from your own pages, not from a template.
There is no standalone llms.txt generator page on areyoufoundbyai.com. If you have an old bookmark to a generator URL, use the free scan instead.

The open-source route

If you would rather generate or check the file yourself, the open-source thl-open suite includes two ways to do it:
From Claude Code, with the suite installed, you can also run /geo llmstxt https://example.com. See Claude Code Skills for installation.

The llms.txt format

The format below follows the spec bundled with the geo-llmstxt skill. A valid file starts with an H1 title, then a one-line blockquote description, then at least one H2 section of page links:
Each page entry follows the pattern - [Page Title](absolute-url): Brief factual description. Descriptions should state what information is on the page, not marketing copy. Use full https:// URLs, never relative paths. Keep the blockquote description under 200 characters.

Where to host it

Publish the file at the root of your domain:
It should return HTTP 200 without a redirect. Most static-site generators and CMS platforms let you place files in a public/ or static/ root folder. A longer companion file, llms-full.txt, can hold the complete page inventory with longer descriptions. Link it from the ## Optional section of your main file.
Update it whenever you add significant new pages, remove pages that are listed, or change key facts about your business. After updating, you can submit the llms.txt URL with the IndexNow Submitter so Bing re-crawls the updated file.
No. It helps machines understand your site, but a website change does not guarantee that an engine will recommend you. Measure the answers again after you publish it to see whether anything changed.